Gas-mixing device



M rch 25, 1924.

M. T. MINOGUE GAS MIXING DEVICE Filed April 12. 1923 Ratented Mar. 25, 1924.

UNITED. STATES MARTIN T. MINOlGUE, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO AUTOMO- TIVE APPLIANCE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPOR A' TION OF DELAWARE.

easmrxme DEVICE.

Application filed April 12, 1923. Serial No. 631,525.

To all whom it may concern:

Be it known that I, MARTIN T. Mmoeun, a citizen of the United States, residing at Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Mixing Devices, of which the following is a specification.

My invention relates to gas mixing devices, and it relates more particularly to an improved form of device adapted to be 'inserted in the intake pipe of an automotive engine, between the carburetor and the inlet valve of the engine. 1

The principal object of my invention is to provide a simple and inexpensive, yet efficient device for thoroughly commingling the hydro-carbon fuel vapor with the air, during its passage to the engine, in such manner as to insure the complete evaporation of the fuel as well as a thorough and uniform mixture of the same with the air, whereby the efliciency of the engine will be increased.

My invention contemplates the provision of a device which will break up the passing mixture into a plurality of streams, and at the same time thoroughly agitate the same so as to thereby secure a more perfect admixture, and this without materially interfering with the free flow of the mixture through the intake pipe.

The nature and characteristic features of my present invention will be more readily understood from the following description, taken in connection with the accompanying drawings forming part hereof, in which:

Figure 1 is a vertical central sectional view of a portion of the intake pipe or conduit of an automotive engine or the like, with the device embodying the main features of my present invention shown mounted therein;

Fi 2 is a section thereof taken approximate y on the line 2-2 of Fig. 1, illustrating .the device of my invention in end elevation within the conduit; and I Fig. 3 is a side elevation of the device removed from the intakepipe or conduit.

Referring to the drawings, 5 is the intake pipe constituting, in most instances," a -p ortion of the distrlbuting manifold of the automotive engine. The pipe 5 is usually provided with a flange 6, to which is bolted the flange 7 of the pipe 8, extending from the carburetor. The flanges 6 of, the intake pipe and 7 of the carburetor are usually secured to each other by bolts 9, and there is also usually provided a gasket 10 mounted therebetween to prevent leakage at the joint.

' The particular embodiment of my invention shown in the drawings comprises a supporting structure consisting of a short intake pipe and carburetor, respectively, the

length of tubing 11, preferably provided gasket 10 preferably being of such internal diameter as to permit the flange 12 to be properly seated between the flanges of the intake pipe and carburetor. Extending from the tubular portion 11 of the device is a helical ribbon 13, preferably arranged in a conical spiral, the convolutions thereof also being separated a slight distance from each other, longitudinally as well as concentrically. Mounted upon the conical spiral ribbon 13 is a coiled wire spring 14, the convolutions of which are preferably more widely separated toward the larger endvof the convolutions of the ribbon 13 upon which the coil spring 14 is mounted, that is to say, the

pitch of the coils of said spring progressively increasing toward the end thereof adjacent the tubular portion 11 of the device. The smaller free end of the ribbon 13 is referably bifurcated and bent over to eac side,

as as 15, to retain the coil spring 14 in place upon the conical spiral ribbon 13.

' By the foregoing arrangement, the mixture of gasoline vapor, or other fuel, and the air passing through the conduit will be broken up into a plurality of streams and thoroughly agitated throu hout, and any unevaporate'd portions of t e fuel will be temporarily deposited upon the surfaces of the device to be subsequently taken up and evaporated by the air and thoroughly mixed therewith.

It will be noted that the device may be inexpensively constructed, but will be very eflicient for its intended purpose. It should also be noted that, by reason of the compressibility of thecoil spring 14, the device will readily adjust itself to the variations in the internal diameter of the intake pipe in which it is mounted, and by the provision of a series of a limited number of graduated sizes of the device, it will not be necessary to fit each of the devices to the particular engine in connection with which it is desired to use the same.

Having thus described the nature and characteristic features of my invention, what I claim as new and desire to secure by Letters Patent is:

1. A gaseous fuel mixer adapted to be mounted in a conduit comprising a device provided with a conical spiral ribbon, and a coil spring mounted upon said ribbon.

2. A gaseous fuel mixer adapted to be mounted in a conduit comprising a device provided with a conical spiral ribbon, and a coil spring mounted upon said ribbon, said coil spring normally extending at the large end beyond the dimension of the internal diameter of the conduit but adaptedto be compressed therein.

3. A gaseous fuel mixer adapted to be mounted in a conduit comprising. a device provided with a conical spiral ribbon, anda coil spring mounted upon said ribbon, said coil spring having its convolutions of pro gressively increasing pitch toward the large end of the conical spiral ribbon.

4:. A gaseous fuel mixer adapted to be mounted in a conduit comprising a device provided with a conical spiral ribbon, and a coil spring inounted upon said ribbon, said coil spring having its convolutions more widely separated toward thelarge end of the conical spiral ribbon, said coil spring normally extending at the large end beyond the dimension of the internal diameter of the conduit but adapted to be compressed therein.

5. A gaseous fuel mixer adapted to be mounted in a c nduit comprising, a. device having a tubular portion, a helical ribbon extending r'rcm said tubular portion ofthe derice, and a coil spring mounted upon said ribbon.

.6. A gaseous, fuel mixer adapted to be mounted in a conduit comprising a device having a tubular portion provided with a flange adapted to be clamped between the flanges of adj oining'sections of the conduit, a conical spiral ribbon extending from said tubular portion of the device, and a'coil spring mounted upon said ribbon.

In testimony whereof, I have hereunto signed my name.

MARTIN T. MiNoGUE. 

